Patent GB-722246-A (GB)
Title: Improvements in or relating to disintegrators
IPC: B02C13/16
Filed: 1952-12-02
Abstract: 722,246. Grinding and cutting mills. SANDOR, B. T. Jan. 6, 1954 [Dec. 2, 1952], No. 30515/52. Class 59. A disintegrator for hay, straw, grain, silage, pig-feed, &c., comprises a driving device having a stationary frame and a rotary drive shaft 8, Fig. 1, and a rotor 13, 14 for throwing the material to be disintegrated outwardly against an apertured screen 27 which is secured directly or indirectly to the frame, the rotor being carried on the shaft 8 or on an extension 9 thereof without additional bearing means. The rotor in Fig. 1 carries four pairs of beaters 14, pivoted on pins 15, and blades 16, 17 to suck air through a feed opening 26 and propel it with the ground material through the screen 27 into a passage 29 leading out of the mill. A further fan 11 is also attached to the extension 9 of the shaft 8 of the driving motor, which may be an electric motor, to prevent accumulation of the ground material in the passage 29. Material such as grain is projected from a hopper 21 beneath an adjustable gate 23 and into the mill through the opening 26 by lugs 20 on a nut 19 which is rotated by the extension 9. The base 1 of the rotor casing is secured to or integral with the motor casing, and the rotor may be modified by impelling blades which are offset radially. As applied to a mincer for pig-feed, Fig. 2, the rotor 38 has central cutters 35, 36 and peripheral cutters 39, 40 to coact with a slidable screen 44 located in the feed opening. The fan and the rotor may be arranged at opposite ends of the electric driving motor 58, Fig. 5, the casing 59 for the rotor also housing a coacting cylindrical screen and both casings 59, 63 having tangential outlets 61, 64. In the hay grinder, Fig. 6, which has knives, hammers or other disintegrating means 73 on the rotor 72, a feed screw 74 or a lug arrangement as in Fig. 1, draws the hay into the mill, and a tangential outlet is provided in the casing 69. The disintegrator may also be let into the top of a meal bin or a storage room, the apertured screen surrounding the hammers or cutters being suspended from the top of the bin by bolts. In various modifications, the rotor may have swinging or fixed hammers, flails, beaters, cutters, or any combination thereof, and the size of the apertures in the screen is preferably adjustable for controlling fineness; a plurality of tangential discharge outlets may be provided in the disintegrator casing; separate attached casings may be provided for the rotor and fan; an even flow of grain may be provided to the adjustable feed gate by a guide, spiral slot, lug formation, &c., on an extension of the drive shaft; the drive shaft or an extension may also drive a feeding or mincing mechanism through pulleys, or a second extension on the drive shaft may drive a second disintegrator, mixer or fan to further treat the ground material after it has left the first disintegrator. The rotor and apertured screen may be replaceable for different disintegrating operations or for conveying grain. The Provisional Specification discloses also that the disintegrating unit may be detached so that the driving unit can be used for driving other devices, such as a mixer, circular saw, wire brush, polishing mop and grind-stone.